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versión On-line ISSN 0718-1620
Cienc. Inv. Agr. v.36 n.2 Santiago ago. 2009
Cien. Inv. Agr. 36(2):239-248
Importance of origin in rice purchasing decisions in Talca and Temuco, Chile
Berta Schnettler1, Danilo Ruiz1, Oriana Sepúlveda1, José Sepúlveda2, and Marianela Denegri2
1 Departamento de Producción Agropecuaria, and 2Departamento de Psicología Universidad de La Frontera. Casilla 54-D, Temuco, Chile.
Considering the increase in imports of forestry, farming and livestock products to Chile, the existence of different consumer segments was evaluated according to the relative importance of origin in decisions to purchase rice in Talca and Temuco in central-southern Chile. With this purpose, a direct survey was administered to 800 consumers, 400 in Talca (Maule Region) and 400 in Temuco (Araucania Region). Using a conjoint analysis and hierarchical clustering, five market segments were distinguished. The largest group (35.4%) gave great importance to the origin of the rice. The second largest group (25.1%) gave greater relevance to the packaging. For the third and fourth largest groups (15.4 and 12.5%, respectively), the cost of the product was the most important attribute. The smallest group (11.6%) gave slightly higher importance to the origin of the rice than the other attributes. Only this final group preferred imported rice. Therefore, the results of this investigation make it possible to conclude that the origin of the rice is an important attribute for 47% of the consumers in Talca and Temuco, Chile. The other groups based their purchase decisions on the price or the product packaging. The highest proportion of consumers (88.4%) preferred domestic rice.
Key words: Importation, market segmentation, origin, Oryza sativa, rice.
Considerando el aumento de las importaciones de productos silvoagropecuarios en Chile, se evaluó la existencia de diferentes segmentos de consumidores según la importancia relativa del origen en la compra de arroz en la zona centro-sur de Chile. Para esto se realizaron encuestas directas a 800 consumidores, 400 de la ciudad de Talca (Región del Maule) y 400 de Temuco (Región de La Araucanía). Mediante análisis conjunto y análisis de conglomerados jerárquicos se distinguieron cinco segmentos de mercado. El más numeroso (35,4%) concedió gran importancia al origen del arroz, el segundo grupo en importancia (25,1%) otorgó mayor relevancia al envase, el tercer y cuarto grupo en importancia (15,4 y 12,5%) dieron alta relevancia al precio del producto, mientras el grupo minoritario (11,6%) dio leve mayor importancia al origen del arroz. Sólo este último grupo prefirió arroz importado. Por lo tanto, los resultados de esta investigación permiten concluir que el origen del arroz es un atributo de importancia para 47% de los consumidores de Talca y Temuco, el resto basó su elección de compra en el precio o en el envase del producto. La mayor proporción de consumidores (88,4%) prefirió arroz chileno.
Palabras clave: Arroz, importación, origen, Oryza sativa, segmentos de mercado.
In an environment characterized by market globalization, the attribute of "country of origin" may be used to add value to the product and differentiate it from competitors (Baker and Ballington, 2002). Consumers differentiate among products from different countries of origin (Verlegh et al, 2005; Orth and Firbasová, 2003; Agrawald and Kamakura, 1999; Verlegh and Steenkamp, 1999). This phenomenon is known as the "effect of country of origin" (Verlegh et al, 2005; Agrawald and Kamakura, 1999) and implies that consumers use a product's origin as an attribute related to its quality, alone or in combination with other attributes (Balestrini and Gamble, 2006; De Cicco et al, 2001; Gürhan-Canli and Maheswaran, 2000).
The country of origin has a great impact on the evaluation of a product when consumers have little time for purchase decisions, as occurs with food (Grunert, 2005; Ahmed et al, 2004; Gürhan-Canli and Maheswaran, 2000; Lantz and Loeb, 1996). Several studies account for the importance of food origin in choosing food, and a normal preference for domestic products or those produced in the country of birth of the consumer are associated with a high degree of ethnocentrism (Schnettler et al, 2008, 2004; Chambers et al, 2007; Balestrini and Gamble, 2006; Verlegh et al, 2005; Alfnes, 2004; Orth and Firbasová, 2003; Baker and Ballington, 2002; Kaynak et al, 2000; Lantz and Loeb, 1996).
On the contrary, other investigations have determined that food origin does not have a significant effect on the perception of product quality (Verbeke and Ward, 2006; Bernués et al, 2003; Acebrón and Dopico, 2000) or the preferences of the consumer (Bonnet and Simioni, 2001; van der Lans et al, 2001).
The country of origin effect is only detected in some products and with uneven intensity. Therefore, a generalization to any product or country is not possible (van Ittersum et al, 2003). There is also evidence of rejection of domestic products and preference for imported products when the local food is of poor qualily (Knighl et al, 2008; Tomlins et al, 2005). Likewise, attitudes loward imported food are nol uniform for all consumers. In íhis regard, the re is evidence that the perceplions of foods from differenl origins depend on age, gender, educalional level and the counlry of residence of the consumer (Chambers et al, 2007; Ozrelic-Dosen et al, 2007; Verbeke and Ward, 2006; Tomlins et al, 2005; Alfnes, 2004, Rojsek; 2001; Juric and Worley, 1998; Wilkowski, 1996). Previous sludies have differenliated segments of European consumers in relalion lo the ir acceplance of foods of diverse origin, wilh groups preferring imported products, domeslic products, or having no preference for a specific origin (Oliver et al, 2006). In Ghana, Tomlins et al. (2005) differenliated four segments of consumers according to their acceptance of different types of domeslic and imported rice.
Since 1992, Chile has subscribed to several international commercial agreements allowing increasing exports and imports of silvoagropecuarian products. Regarding only imports of silvoagropecuarian products, imports increased 162% belween 2000 and 2007, from US$1.128 millionlo US$2.957 million (ODEPA, 2008), allowing Chilean consumers lo purchase a wider range of imported foods.
Rice (semi-bleached or bleached) is among the main foods imported, with an increase of 261% in imports recorded between 2000 and 2007 (56,145 to 202,784 tons). Inthe 2006-2007 season, imports exceeded the national rice production by 44.8% (ODEPA, 2008). Based on this background, the objective of this study was to differentiate consumer segments in the central-southern part of Chile according to the importance they place on the country of origin of rice with respect to other extrinsic attributes of the product (e.g., price, packaging).
MATERIALS AND METHODS
A personal survey was administered to a sample of 800 rice consumers older than 18 years, 400 from Talca (region of Maule, 35°25' S, 71°40' W) and 400 from Temuco (region of Araucanía, 38°45' S, 73°03' W), Chile. The number of surveyed consumers was obtained by a simple random sampling formula for nonfinite populations (N> 100,000; Talca: 201,797 inhabitants and Temuco: 245,347 inhabitants at 2002 Census), considering a 95% confidence interval and 5% of error of estimation with p and q of 0.5 (Fernández, 2002).
A questionnaire was completed with closed-ended questions on consumption of imported foods and reasons to purchase them instead of Chilean foods or not. Classification questions included: gender, age, size of family group, zone of residence, occupation, education level of the head of household, and ownership of ten home goods. These last two variables were included to determine respondents' socioeconomic group, classified as ABC1 (high and médium high), C2 (medium-medium), C3 (medium-low), D (low) and E (very low) (Anonymous, 2004). The survey was carried out intwo supermarkets in Temuco and Talca between April and June of 2007, after validating the questionnaire by a preliminary test of 10% of the sample to be tested.
A conjoint analysis was used to determine the importance of origin in rice purchasing decisions, which permitted estimation of the relative importance and partial values of utility or preference for the following attributes and levels: 1. Origin (domestic and imported), 2. Packaging (bag and box), 3. Price. Because consumers' rejection of imported meat was not compensated for by a price discount of 15% (Schnettler et al, 2004), higher discounts were used, which corresponded to 25% (0.78 USSkg-1) and 50% (0.52 USS-kg-1) off the average price of rice sold to consumers between January 2005 and March 2006 (1.05 USS-kg-1), expressed in the currency of April 2006. The national currency values (Chilean pesos) were converted to dollars using the average 2007 value ($522.46/US$). Twelve combinations were obtained from these attributes and levels (2x2x3, origin x container x price).
The function of preference corresponded to the Ideal Point Model (Hair et al, 1999). The data were obtained by the total profile proce-dure; therefore, 12 cards were elaborated with specifications for each attribute. Each survey respondent ordered the cards from the most pre-ferred to the least preferred on a scale from 1 to 12, where 1 = most preferred and 12 = least preferred. A linear relation was established for the price attribute, because the preference is lower with a higher price. The remaining attributes were considered as discrete variables. A Pearson correlation was used to determine the goodness of fit of the model, and the Kendall Tau correlation was used to determine if the arrangement of stimuli estimated according to the arrangement function corresponded with the real arrangements of the survey respondents (Hair et al, 1999).
In order to segment consumers according to the importance they place on and preferences toward origin, packaging and price of rice, hierarchical cluster analysis was used, with the method of Ward as a way of chaining and with the square Euclidean distance as a measure of likelihood among objects (Hair et al, 1999). The number of clusters was obtained through an observation of the dendrogram and was confirmed by determining the percentage of change of the recomposed conglomeration coefficients. To describe the segments, a Pearson's chi-squared test (x2) was applied to the discrete variables, and analysis of variance was performed for the values of importance of the attributes and preferences of the attribute levels at p ≤ 0.05. The averages of variables with significant differences (p ≤ 0.05) were separated according to the Tukey test of multiple comparisons (Lea et al, 1997). The statistical program SPSS 14.0 was used for data analysis (SPSS, Inc, Chicago, EUA).
The survey sample had equal proportions of consumers from Talca and Temuco, with 42.4% men and 57.6% women; 33.8% were aged less than 35 years, 46.8% were between 35 and 49 years old , 14.8% were between 50 and 64 years old , and 4.8% were over 65 years old . Fifteen percent of respondents' families had one or two members; 56.5% had three orfour members, and 28.5% had five or more members, with 87.6% of the sample residing in an urban area and 12.4% in rural zones. Twenty five percent were independent workers; 9.9%businessmen; 34.9% pri vate employees; 12.9% public employees; 9.8% retired; 2.0% unemployed and 5.6% in other labor situations. Breaking down the sample by socioeconomic status, 19.9% of the respondents were in socioeconomic group ABC1 (high and medium-high); 28.1% in C2 (medium-medium); 29.8% in C3 (medium-low); 21.4% in D (low), and 0.9% in E (very low).
Most of the survey respondents indicated the consumption of imported foods (93.7%; n= 750), which were preferred for being cheaper (50.7%), presenting a good price/quality relation (35.7%), being of better quality (7.0%), because good Chilean substitutes do not exist (6.3%), and for other reasons (0.4%). Among the consumers who do not purchase imported foods (6.3%; n= 50), the reasons for this behavior were the privilege of Chilean products (52%), lower quality of imported foods (44.0%) and the in-creased expense of imported versus Chilean foods (4.0%).
According to the conjoint analysis, the country of origin was slightly more important (34.16%) than the price (33.23%) and the packaging (32.60%) in the purchase decision. The consumers preferred the Chilean rice in a bag and rejected the discounted prices (figures of negative preference). The Pearson and Kendall Tau coefficients of correlation (0.928 and 0.958. respectively) were significant (p = 0.001) and close to 1. Through conglomerate analysis it was possible to differentiate significantly (p ≤ 0.05) five groups of consumers with regard to the importance placed on the origin, packaging and price of rice (Table 1).
Group 5 was the majority (n = 283): 35.4% of the survey respondents gave great importance to the origin of rice (58.2%), significantly (p ≤ 0.05) higher than the rest ofthe groups. In this group, the positive preference (2.944) toward Chilean rice indicates a preference for this origin that was significantly (p ≤ 0.05) higher than the other groups'. The value of negative preference regarding imported rice (-2.944) indicates a strong rejection of the foreign product, significantly stronger than the rest of the groups' (Table 1). This segment assigned similar importance to the packaging (21.1%) and price (20.7%). According to these results, Group 5 corresponded to consumers sensible to origin who prefer domestic rice (Table 1). In relation to the total sample, Group 5 contained a superior proportion of persons working independently (29.5%) who do not purchase imported foods (16.7%) (Table 2).
The second group (Group 3, n = 201) consisted of 25.1% of the survey respondents who assigned greater importance to the rice container (57.5%), significantly (p ≤ 0.05) higher than the rest of the groups. The importance of origin was low (20.1%) and statistically similar to Groups 1 and 2 and lower than Groups 4 and 5 (p ≤ 0.05). Preference for Chilean rice (0.896) was statistically lower than Group 5 but higher than Groups 1, 2 and 4. Group 3 corresponded to consumers preferring Chilean rice and sensible to its packaging (Table 1). Group 3 had a high proportion of consumers from Talca (65.2%) and fewer consumers in the ABO socioeconomic class (12.9%), and its members preferred imported foods due to the unavailability of good Chilean substitutes (3.0%) (Table 2).
The third group (Group 2) (n = 123) was statisti-cally similar to Group 1 and higher than Groups 3, 4 and 5 (p ≤ 0.05); it consisted of 15.4% of the sample of survey respondents who gave great importance to rice price (61.3%). The importance of origin was low (14.1%), statistically similar to Groups 1 and 3 and lower than Groups 4 and 5 (p ≤ 0.05). Preference for Chilean rice (0.467) was statistically similar to Group 1 and lower than Groups 3, 4 and 5. According to these results. Group 2 included consumers preferring Chilean rice and sensible to price (Table 1). Group 2 pre-sented a higher proportion of consumers from Temuco (61.8%), unemployed consumers (4.9%), and people preferring imported foods due to a good price/quality relation (45.9%) (Table 2).
The fourth group (Group 1) (n = 100), consisting of 12.5% of the survey respondents, also assigned great importance to rice price (64.0%), statistically similar to Group 2 and higher than Groups 3, 4 and 5 (p ≤ 0.05). Similarly, the importance of origin was low (13.8%), statistically similar to Groups 2 and 3 and lower than Groups 4 and 5 (p ≤ 0.05). Preference for domestic rice (0.517) was statistically similar to Group 2 and lower than Groups 3, 4 and 5. Group 1 was the only group presenting positive preference values regarding price levels, significantly higher than the rest of the groups (p ≤ 0.05). The preference was increased when paying lower prices; therefore, Group 1 represents consumers who value discounts and prefer Chilean rice (Table 1). Group 1 presented higher proportions of numerous families (40.0%), businessmen (16.0%), public employees (20%), and people belonging to socioeconomic group ABO (36.0%) (Table 2).
Group 4 was small (n = 93) and significantly inferior to Group 5 and superior to Groups 1, 2 and 3 (p ≤ 0.05); it consisted of 11.6% of the survey respondents who gave a slightly higher importance to rice origin (40.8%). Group 4 was the only group presenting a positive preference for imported rice (1.343), significantly higher than the rest of the groups (p ≤ 0.05), and negative preference of or rejection for Chilean rice (-1.343), significantly lower than the remaining groups (p ≤ 0.05). This group may be called consumers sensible to origin who prefer imported rice (Table 1). Group 4 presented a higher proportion of consumers from Temuco (68,8%), between 50 and 64 years old (26.9%), public employees (20.4%), and persons who acknowledge higher quality in imported rice than in Chilean rice (16.1%) and the unavailability of good Chilean substitutes (16.1%). In addition, it presents a lowerpercentage of persons of C3 socioeconomic status (Table 2).
Similar to the total sample, consumers of Groups 1, 2, 3 and 5 preferred bags (positive figures of preference) and rejected boxes as packaging. Group 4 (11.6%) showed the opposite preference.
According to the results, it is possible to divide the population of Talca and Temuco into five groups according to the importance assigned to the origin when purchasing rice. The utility estimates indicated the degree of preference or rejection for each level of each attribute (Hair et al, 1999). Thus, it was determined that the highest proportion of consumers prefer Chilean rice (88.9%), which confirms the results previously obtained with respect to the preference for domestic products (Schnettler et al, 2008,2004; Chambers et al, 2007; Alfnes, 2004; Baker and Ballington, 2002; Kaynak et al, 2000). If it is considered that consumers use origin as an attribute related to product quality (Balestrini y Gamble, 2006; De Cicco et al, 2001; Gürhan-Canli and Maheswaran, 2000), it is possible to suggest that the survey respondents perceive better quality in Chilean rice. In fact, the attitude toward domestic foods is not unconditional; there is a preference for imported foods if they are of better quality than their domestic equivalents (Knight et al, 2008; Tomlins et al, 2005).
In this investigation, the Pearson and Kendall Tau correlation coefficients showed a strong goodness of fit of the conjoint model, and the arrangement obtained corresponded to the global arrangement of the survey respondents (Hair et al, 1999). In the total sample, the consumers assigned similar importance to the attributes of origin, packaging and price, indicating that none of these attributes drives consumer preferences (Baker and Burnham, 2002). Nevertheless, the segmentation criteria based on the use of multivariate techniques, conjoint analysis and hierarchical cluster analysis permitted the analysis of different behaviors in the five segments of consumers obtained according to their purchasing behavior in Talca and Temuco, Chile (Andrews and Currim, 2003).
Therefore, two groups of consumers were obtained for whom the origin of the rice was the dominant factor in the purchase decision (Groups 4 and 5; 47% of the sample) and three groups for whom this attribute had limited importance (Groups 1,2 and 3; 53%). Therefore, in addition to the fact that the effect of the coun-try of origin cannot be extended to any product or country (van Ittersum et al, 2003), this may also be true within certain populations. Therefore, the result of Groups 4 and 5 is in accordance with previous studies on yogurt (Orth and Firbasová, 2003; Lantz and Loeb, 1996), wine (Balestrini and Gamble, 2006), and beef (Schnettler et al, 2008, 2004; Alfnes, 2004). The results from Groups 1, 2 and 3 are in accordance with other investigations (Verbeke and Ward, 2006; Bernués et al, 2003; Acebrón and Dopico, 2000) that indicate a nonsignificant effect of the country of origin in consumer purchasing decisions. Inthis investigation, this couldbe because the countries of origin of imported rice were not specified in the cards presented to the respondents. Grunert (2005) indicates that consumera decision is not affected by the country of origin if he lacks knowledge of the zone of origin of the product. Nevertheless, if this result is compared with the result obtained by Schnettler et al. (2004) for beef, similarly using only domestic and imported origins, it is apparent that the importance of origin in the purchasing decision differs for different types of foods (van Ittersum et al, 2003).
The presence of different segments of consumere in relation to the importance of origin is coherent with results reported in Europe and Africa for beef and rice (Oliver et al., 2006; Tomlins et al. 2005). In this investigation, it was possible to confirm that the perceptions of foods of different origins are affected by age (Chambers et al, 2007; Verbeke and Ward, 2006; Alfnes, 2004, Juric and Worley, 1998; Witkowski, 1996) and the place of the consumer's residence (Ozretic-Dosen et al, 2007; Tomlins et al, 2005; Rojsek; 2001). However, it did not confirm the relation between the acceptance of national and imported foods and gender (Chambers et al, 2007; Tomlins et al, 2005; Alfnes, 2004; Juric and Worsley, 1998) and educational level (Verbeke and Ward, 2006; Juric y Worley, 1998; Witkowski, 1996).
However, the differences detected among the groups according to age are only in partial accordance with results from previous studies (Verbeke and Ward, 2006; Juric and Worsley, 1998) pointing out that the importance of origin is higher for older consumers. A larger presence of older consumers was detected only in Group 4 (26.9% of persons between 50 and 64 years old ), which assigned 40.8% importance to rice origin, not in Group 5, which gave the highest importance to the origin attribute. Similarly, the rejection of Chilean rice and preference for imported rice obtained in Group 4 opposes the higher preference for domestic products detected in older persons in Norway (Alfnes, 2004) and the United Kingdom (Chambers et al, 2007). However, the preference for imported rice in this group is coherent with the greater proportion of persons indicating a preference for imported foods because of their higher quality (16.1%) and the unavailability of good Chilean substitutes (16.1%). The segment showing a higher preference for domestic rice and higher rejection for imported rice was only different from the rest of the segments because of the greater presence of persons working independently (29.5%) and persons who do not purchase imported foods (16.7%). This fact, which could be attributed to the existence of ethnocentric behavior as in (Chambers et al, 2007; Kaynak et al, 2000; Witkowski, 1998), shouldbe investigated further.
Although differences were detected among groups according to the city of residence of the consumer, there were not clear tendencies based on this aspect. Considering that rice production in Chile is centered in the region of Maule (Talca) and an increase has occurred in rice imports, a regional ethnocentric effect could have been expected; that is, an evident rejection of imported rice by consumers from Talca. Ethnocentrism makes the consumer think about how purchasing products damages the national or regional economy and causes unemployment (Witkowski, 1998). The group attributing greater importance to origin and presenting a higher preference for domestic rice (Group 5) did not differ statistically from the total sample regarding the shares of consumers from Talca and Temuco. On the contrary, the only group having a larger proportion of consumers from Talca (Group 3; 65.2%) gave more relevance to the packaging. Nevertheless, it is interesting that the group preferring imported rice contains more consumers from Temuco, even though it is the smallest segment.
The great importance assigned to price by the consumers from Groups 1 and 2 is coherent with the results obtained in a study on chocolate preferences in Europe (Ozretic-Dozen et al, 2007). In the case of Group 2, there is congruence with the greater presence of consumers preferring imported foods due to the good price/quality relation (45.9%). In this regard, the re-jection of the discount pnces in the total sample and in most of the segments identified (Groups 2, 3, 4 and 5) shows an association between pnce and quality (Stiving, 2000). Pnce is an important quality indicator when making the wrong decision involves a certain degree of risk. Therefore. in some cases the consumers may reject cheaper products to avoid the risk of dissatisfaction with the purchase (Kotler, 2002). Conversely, the only group showing a preference for discounted prices contained a greater proportion of persons of high socioeconomic stratus (Group 1; 36.0% ABO) and entrepreneurs (16.0%). However, this behavior may be explained by a higher proportion of these consumers belonging to families with five or more members (40.0%). Consumers purchasing in large amounts are more likely to prefer more economic alternatives, which may provide significant savings (Baltas y Doyle, 1998).
Therefore, although segments of consumers assigning different relevance to the origin of rice purchased were obtained, there is an important proportion of consumers (47%) whose purchase decisions are driven by this attribute. Regardless of the importance assigned to origin in rice purchasing, the majority prefer the Chilean product, indicating an opportunity for the domestic rice industry. The attribute of country of origin may be used to promote domestic products inthe local market, emphasized inthis case by growing competition from foreign products.
The authors are very grateful for the financial support received from FONDECYT, project 1080146 and DIUFRO, project 120601.
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Received 13 August 2008. Accepted 31 December 2008.
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